Is there any particular reason that the puppy level build recommends an aftermarket cooler and overclocking capable motherboard for a non-overclock-able CPU? 'Cause that seems kinda pointless.
Base Intel coolers can best be described as "usually adequate". They keep the CPU from getting fatally warm during regular use and will, when the processor is pushed hard, give off a level of sound best described as "vacuum cleaner". Even a cheap tower cooler will be a good quality of life improvement if only for your ears.